To determine if 1855 is a prime number or a composite number, we simply look at the factors for 1855.
If the factors of 1855 are only 1855 and 1, then we know that 1855 is a prime number. Otherwise, 1855 is a composite number.
To explain better, if 1855 is only divisible by 1 and 1855, then it is a prime number, and if 1855 is divisible by more than 1855 and 1, then it is a composite number.
The factors of 1855 are as follows:
1, 5, 7, 35, 53, 265, 371, 1855
Therefore, since 1855 is divisible by more than one and itself, the answer to the
question "Is 1855 prime or composite?" is highlighted in blue below.
composite
Is 1856 prime or composite?
OK. Now you know that 1855 is a composite number. Use our logic above and see if
you can figure out if the next number on our list is prime or composite before you check your answer.
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